Calculating-machine.



I. THINKS. CALCULATING MACHINE. APPLICATION FILED OUT. 11, 1913.

Patented Feb. 24, 1914.

3 BIIEETFSHEBT 1.

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F. THINKS.

CALCULATING MACHINE.

APPLICATION FILED 00w. 11,1913.

Patentd Feb. 24, 1914L 3 SHEETS-3HEET 2.

Wfi/f5565 Q ma] F. THINKS.

CALCULATING MACHINE.

APPLICATION FILED 00T.11, 1913.

1,088,486. Patented Feb. 24, 191i 3 BEEETE SHEET 3. Fig. 3,

0 & 2 25 33 FRANZ THINKS, or BRUNSWICK, GERMANY.

CALGU LATING-MACHIN E.

Specification of Letters Patent.

Patented Feb. 24, 1914.

Application'filed October 11, 1913. Serial No. 794,721.

To all whom, it 775a concern:

Be it known that I, FRANZ THINKS, manufacturer, citizen of the Duchy of Brunswick, Empire of Germany, residing at Brunswick, Germany, have invented certain new and useful Improvements in Calculating-Machines, of which the following is a specification. r l

My invention relates to improvements in calculating machines, and more particularly in "calculating machines of the class in which the numeral wheels of a revolutions counting mechanism areeach provided with two series of numbers displaced from each other, and in which this revolutions counting mechanism is equipped with resetting de- \ices by means of which all the numeral wheels can be reset to different initial positions.

The object of the improvements is to provide a machine of this class in which a single resetting mechanism. is provided which is adapted to return all the values displayed through the peep holes of the machine easing into their respective zero positions, and by means of which the whole mechanism can be set from any zero or value indicating position to a definite number which is to be used as an initial number from which the calculation is to be started. With this object in view my invention consists in so constructing the resetting mechanism, that it can be set and fixed in several initial positions.

For the purpose of explainingthe inven tion several embodiments thereof have been shown in the accompanying drawings, in which" the same letters of reference'have been used in all the views to indicate corresponding parts.

In said drawings-Figure 1, is a front view of a calculating machine with the cover of the casing partly removed and partly in section, Fig. 2, 1s a cross-section taken on the line 2-2 of Fig. 1, Fig. 3, 1s a cross-section taken on the line 33 of Fig.

1, Fig. 4, is an endview of the carriage carrying the numeral wheels, Fig. 5, is a development of one of thenumeral wheels of the machine shown in Figs. 1 to 4, Fig. 6, is a" detail view showing a modification of a part of Figs. 1 and 3, Fig. 7, is an end view of a carriage of the registering mechanism of a modification of the calculating machine, F g- 80 is a .a tiel' sect o Fi 7 taken on 'thdlihe 8, Fig. 9, showsa carrying lever of the machine shown in Figs. 1 and 3 and a subsidiary shaft and its bearings provided for rocking the said lever from the end position shown in the figure into its other end position, Fig. 10,

1s a similar view of the said lever showing adapted to be rotated by means of a machine crank and consisting of setting disks each of which is provided with a plurality of teeth which are adapted to be shifted into or out of operative positions by means of rotary cam disks, the said setting disks being adapted to transmit the values set thereon through transmission wheels to a main registering mechanism which is mounted on a shiftable carriage. Coaxially of the said registering mechanism a revolut1ons counting mechanism is provided which is adapted to register the number of the revolutions of the machine crank. A calculating machine of this class is shown for example in the patent of the United States No. 1,040,059, granted to me October 1, 1912. I wish it-to be understood, that this particular calculating machine has been shown merely for the purpose of explaining the invention, and that my invention is not limited to the use in combination with the class of calculating machine shown in the drawings. Also in other respects it will be understood, that various changes may be made in the general arrangement and con struction of the parts of the machine within the gist of my invention. 1

Referring now more particularly to the example illustrated in Figs. 1 to 5 of the drawings, the calculating machine consists of a setting mechanism 57 which is adapted to be operated by means of a machine crank and to transmit the values set thereon to a main registering mechanism 56. Furthermore'the machine is provided with a revolutions counting mechanism the numeral wheels 1 of which have two series of numbers printed thereon, which numbers are trated in Fig. 5 showing a development of n the nume l hee E ch o h numeral wheels 1 is connected with a spur gear 2 having twenty teeth and meshing with an intermediate gear wheel 3. The

'said gear wheels are adapted to be operated from a driving gear wheel 5 which is equipped with two teeth 4 and is secured to is hed in engagement with a cam formedlon a sleeve 13 by ii-S plrixiglmd with the wing nut 10 is turned t e nose 11 rides r on the cam face 14, so that the shaft 7 is shifted in the direction of its axis, and the noses 9are engagedbythe pins 8.

In the embodiment of the invention shown in Figs. 1 to 5 a disk 15 is'connected with the sleeve 13, and the said disk is formed with two adjacent notches 16 and 17 which 'hre at a distance from each other equal to one twentieth of the circumference of the disk and are adapted to be engaged by a spring actuated pawl 18 which is adapted to be lifted out of engagement 'with the notches by hand. In the osition shown in Fig. 4 the notch 16 is provided for the series of numbers corresponding to divisions and subtractions, and the notch 17. is provided for the series of numbers corres onding to additions and multiplications. I the result of a-division has been displayed through the peep holes 19 of the cover of the easing 58, and it is desired to reset the mechanism, the wing nut 10 is turned in the direction of the arrow shown in Fig. 4.

notch 17.

can easilybe erased by turning the win" nut and thus resettingthe mechanism. If it is If it is desired to begin a multiplication,

the zeros of the series of the numbers corresponding to the multiplication must at first e; brought into the positionsin which they at displayed through the peep holes 19.

this urpose the pawl 18 is at first disengaged rom its notch, and the disk 15 is turned until the pawl 18 can engage in the The values which thus appear desired thereafter to again perform subtractions or divisions, the disk 15 is-again re-" turned into the position shown in the fi are.

In order to prevent the disk 15 rom gettiri into a wrong position wheh being turne the pawl 18 15 formed with a rearwardly extending arm 54 which engages with a nose 20 into a longitudinal notch 21 of the disk 15 when the awl 18 is beiflg lifted.- In this case the en faces 22, 23 of the said notch prevent the disk 15 from being rotated beyond the notches 16 and 17.

In the example shown in Figs. 7 and 8 instead of the single pawl 18 shown in Fi 4 two separate pawls 24 and 25 are provided, the pajw1 24" having its fulcrum 2? on the side wall 26 of the carriage, and the pawl 25 having a rocking support on a disk 28 which .takes part in the movement of the wing nut 10 being turned. The pawl 24 is e nipped with a nose 29 by means ofwhic1 it is adapted to en age in either one of two notches 3O and 31 belonging each to one series of numbers and formed in the disk 15', so as to prevent rotation of the latter, when the pawl is in engagement with one of the notches. Besides the pawl is formed with a laterally projecting finger 32 which engages below a lateral projection 33 of the pawl 25 andlifts the same when a button 34 on" the end of the pawl 24 is being depressed. Normally it does not engage the projection 33, so that the pawl 25 can take part' in the rotation of the disk 28.' The pawl 25 is formed with two notches 35 and 36 corresponding to the two series of numbers-and arranged to lock the wing nut 10 by means of a finger 37 provided on the latter. The wing nut'is free to be turned with its wing in notches 38 and 39 of the disk 28 without carrying the same along. The disk is carried along only through the intermediary of the pawl 25 which has a rocking support on the disk 28 and which is coupled to the wing nut 10 when the finger 37 engages in one of the notches 35 or 36 of the pawl 25.

The disk 28 can be prevented from-being rotated while the wing nut 10 is being operated and after the pawls 24 and 25 have been disengaged from their notches. For this purpose above-the pawl 25 two sto members 40 and 41 are fixed to the side wa l 26 of the carriage, which stop members aresoarranged, that the finger 33 gets into position between the same when the pawl is being rocked upward, so that rocking movement of the pawl 25 and thereby rotation of the disk 28 are prevented.

In the machine shown in the figures the carrying mechanism consists of rocking arms 43 constructed in the form of hammers and adapted to be rocked by pins 42 secured to the numeral wheels, as is known in machines of this type. Each of the hammers 43 is formed at its upper endwith aslot through which. a shaft 45 carrying the intermediary transmission wheels is passed. Furthermore each of the hammers 1S equipped with a plunger 44 acted upon by a spring 125 48 and arranged, for engagement with the shaft 45. This mechanism is provided for locking the hammers 43 in either one "of their end positions,'as is known in the art.

ing plunger 44.

When passing from one series of numbers to the other one the pins l9 must be brought from the upper to the lower side of the head 47 of the carrying arm or hammer or vice versa. This can be etlected by first rocking the arm. lilaway from the said pin.

moving the pin 42 with the numeral wheel 1 1 downward and then returning the lever iii-into its position of rest. To eifect this and to compress in this operation the spring 48 of the hammer 43 as little as possible the shaft 45 has a rocking support, Fig. 9, which showsone of the hammers 43 illustrates the known function of the spring actuated lock- As shown the shaft 45 is formed with edges at the points where it is engaged by the plungers 44. In the position shown in Fig. 10 the shaft 45 has been rocked in such a. way, that the edges of the shaft are directed to the left. Therefore the plunger H can not engage at the rearof the edge 4 6, and after the pin a2 has passed the head 47 of the hammer 43 the corresponding plunger 44 is forced by its spring 48 against one of the beveled surfaces of the edge of the shaft which as sumes an inclined position when the shaft 45 is turned, so that also-the hammer 43 is returned into operative position.

The shaft aid is turned from the resetting mechanism 7 of the revolutions counting mechanism by means of a crank 49, a nose 50 of the said crank being forced out of a notch 51 when the disk 28 is beingrotated. At the end of therotation of the disk 28 a spring 52 forces the nose ()0 back into engagement with its notch.

The second embodiment of my invention is preferable as compared to the first one, because in each position of the wing nut 10 the shaft lo is rocked with equal accuracy, without having dead movement which in the example shown in Figs. 1 and 4 can not be avoided, if the disk to be used as a con trolling disk for the shaft 45.

For shifting the carrying pin 42 from the lower to the upper side of the head at? of the hammer 43, the said hammer 43 may if desired be so connected with the resetting mechanism, or more particularly with the Wing nut 10 of the resetting shaft 7, that by starting the operationof the resetting mechanism the hammers 43 are rocked. Before making use of the rocking movement the hammers 43 must be rocked backward by suitable stop members. This may be done for example by means of a shaft 53 common to all the levers 43, which ieic'onstructed in the same way as a resetting shaft equipped with resetting pins, as has been indicated in Fig. 11. 'As shown the axis of the carrying levers 43 is equipped with pins 59, and

it is provided atts left hand end with a wing nut which is adapted to longitudinally ehift and turn the said shaft. l/Vhen the axis 53 is shifted the pins 59 move into E position for engagement with pins 43" sel cured to the levers 43 and. carry the same i along during rotation of the shaft. If the l sleeve (32 which is engaged by cam face (31 formed on the wing nut is so constructed that it can be turned and locked by means of a locking pin (33 or the like in several positions, the levers 413 can be turned in both directions by means of the wing nut 60.

It. will be understood, that the construction shown in Fig. 11 may also be embodied in the previously described figures, and that it has been shown in a separate figure merely for clearness sake.

By reason of the large number of values of the revolutitms counting mechanism much power is required for rocking the han'lmers. Therefore I prefer to shift the carrying pin from the upper to the lower side of the head of the hammer by rotating the same in the opposite direction atan angle of nearly 360 degrees, which may be done by rotating the nun'leral wheel 1. If this is to be done from the resetting shaft 7, all that is necessary is to turn the resetting shaft backward until its pins get in engagement at the rear of the st ops provided on the numeral wheels when the resetting shaft is pulled outward in axial direction. Thereupon, by a complete rotation. the numeral wheels are carried along, so that the zero belonging to the other series of numbers is displayed. In this case aresetting shaft. of the construction shown in Fig. 5 of the German Patent 197,453 may advantageously he used after slightly modifying the same.

I claim herein as my invention:

1.. In a calculating machine, the combination with the revolutions counting mechanism, comprising numeral wheels having two series of numbers displaced from each other, of resetting mechanism having a plurality of end or zero positions, and means to setthe resetting mechanism for operation with either one ofits end or zero positions.

2. In a calculating machine, the combination with the revolutions counting mechanism, comprising numeral wheels having two series of numbers displaced from each other, of resetting mechanism having a plurality of endor zero positions, a movable anism and providing a plurality of end positions therefor, and 'means to set said movtions.

3. In a calculating machine, the combination with the revolutions counting mechanism, comprising numeral wheels having two? series of numbers displaced from each other, of resetting mechanism having a P111- 1 rality of end'or zero positions and commembcr coiipera ting with the resetting mech-' able member in either one of its end posi-' prising a rotary resetting shaft, a sleeve onsaid shaft providing an end or zero position therefor, and means to set said sleeve in different positions.

4. In a calculating machine, the combination with the revolutions counting mecha--' nism, comprising numeral wheels having two series of numbers displaced from each other of resetting mechanism having a plu rality ofend or zero positions and comprising a rotary resetting shaft, a sleeve on rality of end or Zero positions and compristwo series of numbers displaced from each said shaft providing an endvor zero position therefor, and a locking pawl adapted to lock said sleeve in different zero or end positions. if

5. In a calculating machine, thec'ombination with the revolutions counting mechanism, comprising numeral wheels having two series of numbers displaced from each other, ofresetting mechanism having a plu ing a rotary resetting shaft, a sleeve on said shaft providing an end or zero position therefor, a locking pawl adapted to lock said sleeve in different zero or end positions, and means operative when the pawl is in non-locking position to prevent said sleeve from movement away from its positions for locking engagement by said pawl.

6. In a calculating "machine, the combination with the revolutions counting mecha-.

' engagement from the sleeve and disk respectively. c

7.IH a calculating machine, the combination'with the revolutions counting mechanism, comprising numeral wheels having other, of resetting'mechanism having a plurality of end or zero positions and comprisin a rotary, resetting shaft, a sleeve on said s aft providing an endorzero position therefor, a locking pawl having a relatively fixed fulcrum and adapted to lock said sleeve in different end or zero positions, a loose disk on said sleeve,"a coupling pawl liaving its fulcrum on the disk and adapted to couple the disk and resetting shaft indifferent relative positions, said pawls being arranged for' simultaneous disengagement from the sleeve and disk respectively, and

movement of the disk.

9. In a" calculating machine, the combi-.

means-to lock said coupling awl against rotation when being out of loc l sing engagement with the disk. I

8. In a calculating machine, the combi nation with the revolutions counting mechanism, comprising numeral wheels havin two series-of numbers displaced from eac other, of resetting mechanism having a plurality' ofend or zero positions and comprising a rotary resetting shaft, and its operating 'member, a sleeve on said shaft providing an end or zero position therefor,

a locking pawl having a relatively fixed fulcrum and adapted to lock said sleeve in differen end or zero positions,.a loose disk on said s eeve, and a coupling pawl having its fulcrum on the disk and adapted to cou le the disk and resetting shaft in different t e ative positions, saidpawls bein arranged for simultaneousdisengagement and disk' respectively, and said disk having a notch permitting relative movement of the coupling pawl and disk sufficient to permit turning of the operating member from its om the sleeve end or zero positions without corresponding nation with the revolutions counting mecha nism, the resetting mechanism, and the carrying mechanism comprising pinsprovided on the numeral wheels, and carryingfllelvers adapted to be rocked by said pi --dfi..

operative connection between said resetting mechanism and carrying levers adapted to rock the carrying levers when starting resetting operation of the resetting mechanism ago and to permit the levers to return into normal positions prior to the end of there setting operation-,whe'reby the resetting pins can be shifted from one. position relatively to the levers into the-other one.

10. In a calculating machine, the combination with .the revolutions counting mechanism, .cpmprising numeral wheels havin two, series of numbers displaced from eac other, of resetting mechanism having afplura-lity of, end or zero positions and 'com-.

.prisin a rotary resetting shaft, a sleeve on said 5 aft providing an end or zero position therefor, a locking pawl having-a relatively fixed fulcrum and adapted to locksaid sleeve in different end or zero ositions, a loose disk on said sleeve, a coup ing pawl having its fulcrum onthe disk and adapted to couple the disk and resetting shaft in different relative positions, said pawls being arranged for simultaneous disengagement from the sleeve and disk respectively, resetting mechanism comprising pins provided on the numeral wheels of the revolutions counting mechanism, carrying levers, adapted to be rocked by said pins, and stop members adapted to hold said carrying levers in or out of operative position relatively to the pins, and an operative connection between my hand in presence of two subscribing witsaid disk and stop members adapted when nesses. starting the movement of the disk to shift I said stop 'members into position for holding the eavrrying levers out of operative positionrelatively to the ins.

In testimony W ereof I have hereunto set FRANZ THINKS.

Witnesses:

THERESE TRINKs, ALFRED FLINDEN.

Copies 0! this patent may be obtained tor five cents each, by addressing the, Commissioner of Baton,

Washington, D. O." 

